EXTRUSION PROCESS FOR DIFFICULTLY-MELT-PROCESSIBLE POLYMERS - Patent 0447539

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EP 0 447 539 A1

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(43)	Date of publication:
	25.09.1991 Bulletin 1991/39

(21)	Application number: 90915924.0

(22)	Date of filing: 04.10.1990

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International Patent Classification (IPC):

B29C 47/ 00^{( . )}
C08L 23/ 02^{( . )}

B29C 47/ 12^{( . )}

(86)	International application number:
	PCT/US1990/005556

(87)	International publication number:
	WO 1991/005007 (18.04.1991 Gazette 1991/09)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB IT LI LU NL SE

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Priority:

06.10.1989 US 19890417986

(71)	Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
	Wilmington Delaware 19898 (US)

(72)	Inventors:
	PRIESTER, Donnan, Edwin Wilmington, DE 19809 (US) TARNEY, Robert, Edward Hockessin, DE 19707 (US)

(74)	Representative: Abitz, Walter, Dr.-Ing., et al
	Patentanwälte Abitz & Partner Postfach 86 01 09 D-81628 München D-81628 München (DE)

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